SOLUTION: In a random sample of 60 computers, the mean repair cost was $150 with a standard
Deviation of $36.
(a) Construct the 99% confidence interval for the population mean repair cost.
Algebra.Com
Question 525038: In a random sample of 60 computers, the mean repair cost was $150 with a standard
Deviation of $36.
(a) Construct the 99% confidence interval for the population mean repair cost.
(b) If the level of confidence was lowered to 90%, what will be the effect on the confidence interval
Answer by merlin694(1) (Show Source): You can put this solution on YOUR website!
RELATED QUESTIONS
In a random sample of 60 refrigerators, the mean repair cost was $150.00 and the... (answered by VFBundy)
In a random sample of 26 computers, the mean repair cost was $130 with a sample standard... (answered by stanbon)
You are given the sample mean and the sample standard deviation Assume the population is... (answered by CPhill)
in a random sample of four microwave ovens, the mean repair cost was $60.00 and the... (answered by ewatrrr)
13 Chevrolet Corvettes were crash tested under a variety of conditions that simulate... (answered by stanbon)
In study of auto-mobile collision insurance cost, a random sample of 40 body repair costs (answered by stanbon)
10. In a random sample of five microwave ovens, the mean repair cost was $70.00 and the... (answered by ewatrrr)
A random sample of 16 men who have a mean height of 67.5 inches with a standard deviation (answered by ewatrrr)
In a random sample of six mobile devices, the mean repair cost was $60.00 and the... (answered by Boreal)